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Bezzdna [24]
4 years ago
13

Just checking this... It would be C right?

Mathematics
1 answer:
DerKrebs [107]4 years ago
7 0

Answer: yes it is

Step-by-step explanation:

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Sally is 10 years older than one fifth of her mother’s age. If Sally is 20 years old, how old is her mother?
slamgirl [31]

S = Sally

M = Mother

S = M/5 + 10

20 = M/5 + 10

20 - 10 = M/5

10 = M/5

M = 10 * 5

M = 50

----------------

Her mother is 50 yo

-----------------

50 : 5 + 10 = 20

the answer is good

4 0
3 years ago
Anything helps ! Brainilest to right answer only .!
Alex_Xolod [135]

x = -16 or x = 5

Solution:

Given polynomial:

x^{2}+11 x-80=0

To find the roots of the polynomial.

Split the middle term 11x.

11x = 16x - 5x

x^{2}+11 x-80=0

x^{2}+16x-5x-80=0

(x^{2}+16x)+(-5x-80)=0

Take the x common in first 2 terms an -5 common in next 2 terms.

x(x+16)-5(x+16)=0

Take (x + 16) common in both terms.

(x+16)(x-5)=0

x + 16 = 0  or  x - 5 = 0

x = -16       or   x = 5

Hence x = -16 or x = 5.

6 0
3 years ago
Help me!
blondinia [14]
Y=130x. The answer is D. 605.
8 0
3 years ago
Witch ones are bigger. <br> a. 5/9 or 11/18<br><br> b. 3/8 or 4/9
Mariulka [41]

Answer:

for a it would be 11/18 and for b it would be 4/9

Step-by-step explanation:

This is because I did the same butterfly method. 5 times 5 times 18 which is 90 for 5/9 and 9 times 18 is 99 for 11/18, you can also write it as 5/9 and 11/18 but cross multiply. This is also what I did with the second one.

6 0
3 years ago
Read 2 more answers
5x &lt; -10 please help me and solve this so I don't fail
Setler [38]

Answer:

x<-2

Step-by-step explanation:

Divide both sides of the inequality by 5 to solve for x.

4 0
3 years ago
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